===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/printf/printf.1,v
retrieving revision 1.20
retrieving revision 1.21
diff -u -r1.20 -r1.21
--- src/usr.bin/printf/printf.1	2008/09/14 11:44:54	1.20
+++ src/usr.bin/printf/printf.1	2008/09/15 19:22:32	1.21
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: printf.1,v 1.20 2008/09/14 11:44:54 martynas Exp $
+.\"	$OpenBSD: printf.1,v 1.21 2008/09/15 19:22:32 martynas Exp $
 .\"
 .\" Copyright (c) 1989, 1990 The Regents of the University of California.
 .\" All rights reserved.
@@ -32,7 +32,7 @@
 .\"
 .\"	from: @(#)printf.1	5.11 (Berkeley) 7/24/91
 .\"
-.Dd $Mdocdate: September 14 2008 $
+.Dd $Mdocdate: September 15 2008 $
 .Dt PRINTF 1
 .Os
 .Sh NAME
@@ -269,6 +269,18 @@
 is used for an
 .Cm E
 format.
+.Pp
+If the argument is infinity, it will be converted to [-]inf
+.Pq Cm e
+or [-]INF
+.Pq Cm E ,
+respectively.
+If the argument is not-a-number (NaN), it will be converted to
+[-]nan
+.Pq Cm e
+or [-]NAN
+.Pq Cm E ,
+respectively.
 .It Cm gG
 The
 .Ar argument
@@ -278,6 +290,18 @@
 .Cm e
 .Pq Cm E
 whichever gives full precision in minimum space.
+.Pp
+If the argument is infinity, it will be converted to [-]inf
+.Pq Cm g
+or [-]INF
+.Pq Cm G ,
+respectively.
+If the argument is not-a-number (NaN), it will be converted to
+[-]nan
+.Pq Cm g
+or [-]NAN
+.Pq Cm G ,
+respectively.
 .It Cm aA
 The
 .Ar argument
@@ -289,6 +313,18 @@
 after is equal to the precision specification for the argument.
 When the precision is missing, enough digits are produced to convey
 the argument's exact double-precision floating-point representation.
+.Pp
+If the argument is infinity, it will be converted to [-]inf
+.Pq Cm a
+or [-]INF
+.Pq Cm A ,
+respectively.
+If the argument is not-a-number (NaN), it will be converted to
+[-]nan
+.Pq Cm a
+or [-]NAN
+.Pq Cm A ,
+respectively.
 .It Cm b
 Characters from the string
 .Ar argument